Do I Need an Accountant for My Limited Company?

Running a limited company has real perks: limited liability, a professional image, and — for many — a lighter tax bill than being a sole trader. But nobody shows you the filing to-do list on the day you incorporate. Accounts for Companies House, a Company Tax Return for HMRC, the confirmation statement, dividend paperwork… each with its own deadline and its own set of fines. So when owners ask us “do I need an accountant for my limited company?”, they’re really asking: what happens if I do this myself, and what does getting it wrong cost? Here’s the straight answer.

What your limited company actually has to file

As a director, you’re personally responsible for your company’s records, accounts and tax filings. GOV.UK’s guide to running a limited company spells it out plainly: you can hire an accountant to handle the day-to-day, but you stay legally responsible. Miss things and the fines land on you. Here are the filings that catch directors out most often:

Annual accounts for Companies House

Your accounts are due 9 months after your company’s financial year ends (21 months for the very first set). File late and Companies House sends an automatic penalty — no warning letter, no negotiation: £150 if you’re up to a month late, £375 for one to three months, £750 for three to six, and £1,500 after six months. Late two years in a row and the penalty doubles. One thing that surprises people: a filing that gets rejected on deadline day doesn’t count as filed, so leaving everything to the last day is asking for trouble.

Company Tax Return and Corporation Tax for HMRC

These are two separate deadlines that are easy to mix up. Your Corporation Tax bill is due 9 months and 1 day after your accounting period ends; your Company Tax Return (the CT600) is due 12 months after. File the return late and HMRC fines you £200 immediately — and the fixed penalties doubled from 1 April 2026, so this stings more than it used to. Three months late adds another £200, and at six and twelve months you face a further 10% of the unpaid tax each time.

Then there’s the confirmation statement: every 12 months you confirm your company details are still correct. There’s no automatic fine for filing it late, but ignore it for long enough and Companies House can start proceedings to strike the company off the register.

Do you need an accountant for your limited company? Here’s the honest answer

No law says you must have one. Plenty of directors with simple companies handle their bookkeeping themselves — recording invoices and expenses in software like Xero or FreeAgent, keeping receipts in order, running a basic payroll. If your company is just you, a handful of clients and tidy records, the day-to-day is genuinely manageable.

The trouble isn’t the bookkeeping. It’s everything around it.

Where an accountant earns their keep

• Getting your salary and dividend mix right. With the Autumn Budget landing on 28 October, directors should review their extraction strategy now rather than react to headlines later.
• Dividend paperwork. Every dividend needs board minutes and a dividend voucher. Without them, HMRC can treat the money as a director’s loan instead — a much nastier problem.
• Filing early. A buffer between finishing and the deadline turns a rejected filing into a minor fix instead of a £150-plus fine.
• Spotting what you’re missing. Missed expenses, unclaimed reliefs and timing mistakes are things a fresh pair of professional eyes catches in one review.

And remember: even with an accountant, the legal responsibility stays with you — which is exactly why choosing someone reliable matters.

What to do this week

1. Write down your three deadlines — accounts, confirmation statement, and tax return plus payment. Check the actual dates on Companies House and HMRC, not the ones in your head.
2. If anything is due within eight weeks, start now. File early so a rejection never becomes a fine.
3. Gather your dividend paperwork. Every dividend taken this year should have minutes and a voucher. If some are missing, that’s your fix-it job.
4. If this list made you wince, get help. A quick review costs far less than a penalty — and our bookkeeping services keep directors’ records deadline-proof all year.

You don’t need an accountant because the law says so. You need one because getting it wrong costs more than getting help. If you’d like a second pair of eyes on your company’s books, get in touch — and browse our blog for more plain-English guidance.